We finally have a solution for those whom desire a variable pitched prop 4D setup with out all the added components and complexity in an all-in-one easy to use ESC.  We've created a super fast reversible ESC which can easily be setup in today's new controllers (refer to video for setting up throttle curve).    Note that this ESC can also work just like a standard ESC with full 0-100 throttle positioning.

Used for all our smaller EPP models.  We recommend a 2s-3s lipo with 1500-1800kv motor along with a Graupner 8x4.5 3d/4d prop , also this prop requires a 8mm hub adapter for our 5.5mm standard hub's in hardware package.   Each ESC have each been constructed with (1) female JST connector and (3) 2mm bullet connectors allowing for a true plug and play setup.

Warranty:  This setup can have a strong effect on motor mount which can damage air frame, we recommend 10mm EPP models or if using thinner Lite or Super lite models to watch reverse thrust and prop setup to ensure no damage will happen. 

Specs:

• Continuous 18A,Burst 22A+ (10 sec's)
• Input: 2-4s Lipo
• BEC : 5v/4A Switch BEC
  
• pwm: 8k-16k
• Measurement: 28x15x5mm
• Weight: 11.5g  

Recommended parts to run 4d setup:

• Graupner 8x4.5 prop
• 8mm ring hub

Video For for Setting up Throttle Curve which must be done for forward and reverse movement.